masmejai



(Mode.) 2 Sheets-Sheet 1.

G, MASMEJAN.

ALARM WATCH.

No. BLQf-. atented Feb. 3,1885.

2 Sheetsr-Sheen (Model.)

ALARM www,

'Pzbtmted Feb. 3, 1885.

UNITED STATES PATENT OEEICE.

`CHARLES MASBIEJAN, OF AROGO, TESSN, SWITZERLAND.

ALARM-WATCH.

' SPECIFICATION forming part of'Letters Patent No. 311,594, datedFebruary 3, 1835.

Application tiled February il, 1384.

(Model.) Patented in France April. 16,18%, No. 154,905; in GermanyNovcmhrrii, 1683, No.

25,071, and in tay December 6, 1883, XVIL IGJSI, XXII, lt.

Ain AlarnrWatches, of which the following is a'lspecitication.

Letters Patent for this invention have been 'granted to me as follows:France,deposited April-16,1883, granted Lugust 3, 1883, No. 151,905;German Einpire,deposited November 10, 1883, granted May 5, 1884, No.26,971; Italy, deposited December 6, 1883, granted December 15, 1883,Vol. XVII, No. 16,181, Vol. XXII, No. 15S.

This invention relates to an alarm-watch in which but one spring is usedto actuate'the time and alarm mechanism; and my improvements relate tothe means' l'or winding up the spring, to the mechanism for setting thehands and the alarm, and to the alarm mechanism, all as hereinafterdescribed.`

In the drawings, Figure 1 is a'view of the front ot'y the watch,theworksbeing detached from the case and the main and alarm dialsvpartly removed. Fig. 2 is a vieu-'at the rear oithe watch, with thecapplate that covers thewinding gear and 'resilier removed. Fig. 3 is aneleva-tion oi'v said cap-plate. a diagramillustrating the gearing ofthetime mechanism. Fig. 5 represents the device for limiting thestriking ofthe alarm, and Fifr. (i is an elevation of the double rockerdetached.

The springbarre-l has teeth at B that gear into a pinion upon thecentral arbor of the watch, and by the wheels 1, 2, and 3,`and pinionsupon the shafts of 2 and 3, motion is communicated to the escapementwheel 4 and balance 5. This arrangement of gearing, as. well asthegearing i'or giving motion to the hour and minute hands, is ot' theusual character.

a is a rocker that occupies a recess in the plate b3, and its pivot a isat the center of said plate. This rocker carries a wheel, a, that isalways in gear with a wheel, o, upon a squared portion of the windingand setting stem f, and c isa spring that bears against said rocker, andmoves said rocker to thelel't, Fig. 2, and causes the wheel u to meshwith a wheel, t, upon the arbor a "t the spring- Fig. 4 is i vmove asone wheel.

barrel. Then the wheels tand narein gear, as shown in Fig. 2, the mainspring can be wound up by turning the stem ci Z) is a lever for movingthe rocker-plate a to the right, Fig. 2, and'disconnecting the wheelstand u for apurpose hereinaiter explained, and d is a cap-plate (showndetached in Fig. 3 and bydottcd lines in Fig. 2) that keeps the rockera., wheel u, and leyer I; iuplace. The cap-plate d presses upon thelever b with sufiicientforce to hold said lever in'the position to whichit may bc moved. In consequence of the rocker a. having its center o."motion at the center ot' the pillar-plate,the wheela, can ried b y saidrocker. gears with the wheels v and t under the most favorableconditions.

Beneath the dial c ot' the watch thereisa double-acting rocker, f,carrying the wheels g, l1., i, and j, and said rocker is pivoted at di.The wheel 7L is uponsaid pivot Rand is always in gear with the wheelst', i, and g, and the wheels t' and j areA upon the saine stud and Z and7s are 1Hishvpins. Their inner ends are connected with said roekerfandtheir outer ends project through the ring ot' the watclr. case, so thattheyr` can be pressed upon by the finger to swing the rocker. XVhen thepin l is pushed in, theroeker is moved .and the vwheel j brought intogear with the minute; wheel k2, and in this position the hands can beset by turning the `stem at through the medium of the wheels c, h, ,j,and It. W'hen the h'ngcr is removed from the pin 1,the spring z returnsthe rocker to its normal position, disconnecting the wheelsj and tf".Vhen the pin k is pushed in,the wheel g is brought into gear with thewheel q, and in this position the dial e* can be turned for setting thea'larm,the stem a? acting through the wheels o, h, g, and q. The. is anotched disk, y, connected to the Wheei q by the pin 12, and said wheelq has a tubular hub surrounding the cannon ot' the hour-wheel andrevoives with it by friction,- and the dial e* sets upon a tubular hubofthe disl ',1/; hence the wheel q, dish y, and dial e4L all revolve asone with the hour-wheel once in every twelve hours, but said parts canbe turned without moving said hourwheel when the wheels g and c are ingear for setting the YI OO and at the saine time thepin e is released.by

' The hammer is now vibrated4 by the escape lresponding to the hour atwhich t-he alarm barrel, and S is a toothed segment pivoted to ing thedial e4 until the ligure on said dial corshall strike comes under thehour-hand ot"- the Watch.

sis a leverpivotedpat 13, and the toothed end 25 of .thisdeveris' kept,pressed against vthe edge of the diskljl/ by the spring k. When theleverrests against the periphery of this disk l, as Vshown by dottedvlines in Fig. 1, the other end of the lever is in the path afa pin, e',upon the hammer e, and prevents the hanr mer being 'vibrated /Vhen' thedisk has revolvedsothat its notch comes opposite the tooth 25, then thespring L moves the lever tothe position shown by full lines in Fig. l,the tooth passing into the notchin the disk,

that end ofthe lever .si-.moving away from it.

ment-wheel sf acting upon the pins 1- i' and the alarm sounded' by thehammer e striking the steel wire Z. rDheeseapement wheel s is upon thearbore?, that receives its motion from the spring-barrel through thewheels 6, 7, and S.' The wheel 6 is loose upon the arborI of thespring-barrel, so as not to be revolved when the spring is heilig woundup; but when the lever s -releases'the pin 'e" then` this wheel 6 isrevolvedby the ratchetwheel a, that is fast to the arbor d', acting uponthe pawl 14, that' is pivoted yto the wheel G. Thespring-b-inrel is of asize to furnish six and one-half turnsv of winding, of which three'turns are for the alarm. Thebalancc enables the watch to lrun for thirtyhours. R is a linger upon the arbor of the springl the plate b Vhen thealarm is striking, the segment is turned one tooth during eachrevolution of the arbor a' until the segment is turned tothe positionshown in Fig, hwhere the further movement of the arbor a is arrested,and the alarm stops striking. The pins yr r, forming ltherecoil-e`scape1nent. are made with semi-cylindrical heads for the teethof the Aescapementwheel s' to act against, and with circular bodiesentering correspondingly-shaped holes in the hammer c. By turning thesepins around in their holes their adjust' ment is effected to regulatethe working of the escapement. I

To prevent the alarm vstriking when the, watch is in the pocket, Iprovidea spring, a, having a projecting part, a, against which'the casestrikes when the case is closed, thereby forcing the free end of thespring against the hammer e and preventing said hammer being moved bythe eseapement-wheel s.. rihis arrangement necessitates leaving the easeopen when the watch is placed uponatable or other support and it isdesired to have the alarm sound. The ,stemy @Zand wheel o revolve whenthe alarm strikes if the wheels u and t' are in gear. lt is thereforepreferable to disconnect these Wheels a and t by the lever b, the outcr/end of which passes through the case and the inner end acts upon therocker a.

If the stem l is allowed to turn, its crown may catch in the watch-chainand prevent the alarm striking. f the niainspring of the watch is fullywound up, and it is desired to set the hands, then 'the lever b must bemoved to disconnect the gears a and t; otherwise the hands cannot beset. If the spring is only partially wound up, then the act of settingthe hands only winds up the spring further, and there is no necessityfor disconnecting the wheels u and t. In setting the alarm the stem andwiieel o are turned to the left in the direction ofthe n1otion ofthehands, and as this motion doesl not wind up the spring it isiinn'iaterial whether the wheels u and t are in gear 'or not. The spring'n might be replaced by the lever m, (shown by dotted lines in Fig. 2,)'said lever to be moved bythe finger to bring its inner end in or outofthe teeth of s and prevent or allow the alarm 'to be rung, as desired;

I claim as my invention- ,1. The rocker a, pivoted at the center ofthewatch, in combination with the'wheel u, carried by said rocker, thespring-barrel and its wheel t, the stem a?, and wheel u, substantiall yas and for the purposes specified.'

2. Thedial e", notched disk y. and wheel q upon the cannon of thehouuhand, in combi- 'nation with the lever s, resting at one Vendagainst said disk y, the hammer e, hav-ing a' pin passing through alslot in the watch-plate and contiguous to the outer end of said lever s,the spring k', eseapement-wheel s', studs r on the hammer, andthesounderspringl', substantally as set forth. l

3. The double rocker-plate f, the wheels h, i, j, and g, the ste-m a?,and wheel o, the handsetting wheel k2, the alarm-dial 6*, gear Q, andnotched disk y, substantially as set forth.

lLl.' rlhe combination, in an alarm-watch, ot'

the stem-winder, thewheels for. communicat-l ing upon thesame stud andthe wheel Iz upon the pivot of the rocker, substantially as and ,for thepurposes set forth.

and semieiroular heads, substantially as and.

for the purposes set forth.

Signed by methisth day of November, A. D. 188i.

CHARLES M ASMEJAN.

Witnesses:

ERNEST WALfrnrn. Josera GoemarU

